EP 0417635 A3 19910814 - TWO DEGREE OF FREEDOM CONTROLLER
Title (en)
TWO DEGREE OF FREEDOM CONTROLLER
Publication
Application
Priority
- JP 23495989 A 19890911
- JP 31548689 A 19891206
- JP 34436689 A 19891228
Abstract (en)
[origin: EP0417635A2] A two degree of freedom PID controller which comprises setpoint filter means (20) for performing a derivative operation (D) on a process disturbance signal in accordance with a setpoint value (SV) and a control value (PV) of a controlled system, thereby outputting a setpoint signal (SV0), PI-control operation means (22) for determining a deviation (E) between the setpoint signal and the control value, and performing a PI-control operation on the deviation, thereby outputting a manipulative signal (MV), and adder means (24) for adding the process disturbance signal to the manipulative signal output by the PI-control operation means, thus obtaining a sum signal, and for supplying the sum signal to the controlled system.
IPC 1-7
IPC 8 full level
G05B 11/42 (2006.01)
CPC (source: EP KR US)
G05B 11/42 (2013.01 - EP US); G05B 13/00 (2013.01 - KR)
Citation (search report)
- [A] DE 2914732 A1 19791108 - ELEKTROPROJEKT ANLAGENBAU VEB
- [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 259 (P-733)(3106) 21 July 1988, & JP-A-63 46502 (YOKOGAWA ELECTRIC CORP) 27 February 1988,
- [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 259 (P-733)(3106) 21 July 1988, & JP-A-63 46503 (YOKOGAWA ELECTRIC CORP) 27 February 1988,
- [A] PATENT ABSTRACTS OF JAPAN vol. 7, no. 168 (P-212)(1313) 23 July 1983, & JP-A-58 75207 (TOKYO SHIBAURA DENKI K.K.) 06 May 1983,
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0417635 A2 19910320; EP 0417635 A3 19910814; EP 0417635 B1 19960403; AU 611839 B1 19910620; DE 69026324 D1 19960509; DE 69026324 T2 19960905; KR 910006812 A 19910429; KR 940003149 B1 19940415; US 5105138 A 19920414
DOCDB simple family (application)
EP 90117107 A 19900905; AU 6202890 A 19900831; DE 69026324 T 19900905; KR 900014322 A 19900911; US 57755890 A 19900905